Use the Following Information for Questions
Lonely Guy Repair

question 90

Multiple Choice

Use the following information for questions
Lonely Guy Repair Service recently performed repair services for a customer that totaled $400. Somehow the bill was lost and the company accountant was trying to recreate the bill from memory. This is what was remembered: $$\begin{array} { l l } \text { Total bill } & \$ 600 \\\text { Labor profit margin } & \$ 10 \\\text { Materials profit margin } & 20 \% \\\text { Total labor charges } & \$ 390 \\\text { Cost of materials used } & \$ 120 \\\text { Total hourly cost } & \$ 22.50\end{array}$$
-What was the material loading charge?

• A) 37.5%
• B) 43.8%
• C) 61.3%
• D) 75%

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Definitions:

Reactivity

The phenomenon where subjects alter their behavior due to the awareness of being observed.

Variability

The amount of dispersion of scores about some central value.

Pearson Product-moment

A correlation coefficient that measures the linear correlation between two variables, indicating the strength and direction of their relationship.

Correlation Coefficient

An index of how strongly two variables are related to each other.